/Engine/Source/Runtime/RHI/Public/RHIResources.h
This PSO is used as a fallback for RHIs that dont support PSOs. It is used to set the graphics state using the legacy state setting APIs.
class FRHIGraphicsPipelineStateFallBack : public [FRHIGraphicsPipelineState](API\Runtime\RHI\FRHIGraphicsPipelineState)
FGraphicsPipeli...
Initializer